针对这一问题，开发了一种特殊套管——TP130 TT高抗挤厚壁套管。

To solve this problem, a special casing - TP130TT high collapsing strength heavy casing has been developed.

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作为美国红阀公司的标准配置，我们可以提供双层(DW)，缩小流道(RP)，以及锥形套管以满足特殊需求。

Along with the standard Red Valve sleeve, we offer Double Wall (DW), Reduced Port (RP), and Cone sleeves for special applications.

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简要介绍了气体钻井、泡沫钻井和套管钻井等特殊钻井技术。

Well logging technology and techniques for gas drilling, foam drilling and casing drilling are summarized and analyzed in this paper.

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